Which of the following statements best describes how this object may have formed?

A. A supernova exploded, probably from the late-stage evolution of a high-mass star.
B. Interstellar gas and dust accumulated due to gravity. Some pockets had enough mass to cause star formation.
C. Material accumulated into a sphere because of gravity, and it underwent nuclear fusion of hydrogen.
D. A star ejected its outer envelope of gas and plasma.


Answer: B

Environmental & Atmospheric Sciences

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